Nanophysics: coherence and transport : École d'Été de Physique des Houches : Session LXXXI : 28 June-30 July, 2004, Euro Summer School, Nato Advanced Study Institute, Ecole Thematique du CNRS
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Körperschaft: Ecole d'été de physique théorique (Les Houches, Haute-Savoie, France) < 2004, Les Houches, Haute-Savoie, France> (VerfasserIn)
Format: Elektronisch E-Book
Sprache:English
Veröffentlicht: Amsterdam Elsevier c2005
Ausgabe:1st ed
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Beschreibung:Includes bibliographical references
Cover Lecturers Seminar speakers Participants Preface Contents Fundamental aspects of electron correlations and quantum transport in one-dimensional systems -Introduction -Non-Fermi liquid features of Fermi liquids: 1D physics in higher dimensions --Long-range effective interaction --1D kinematics in higher dimensions --Infrared catastrophe -Dzyaloshinskii-Larkin solution of the Tomonaga-Luttinger model --Hamiltonian, anomalous commutators,
- and conservation laws --Reducible and irreducible vertices --Ward identities --Effective interaction --Dyson equation for the Greens function --Solution for the case g2 = g4 --Physical properties -Renormalization group for interacting fermions -Single impurity in a 1D system: scattering theory for interacting fermions --First-order interaction correction to the transmission coefficient --Renormalization group --Electrons with spins --Comparison of bulk and edge tunneling exponents -Bosonization solution --Spinless fermions --Fermions with spin -Transport in quantum wires --Conductivity and conductance --Dissipation in a contactless measurement --Conductance of a wire attached to reservoirs --Spin component of the conductance --Thermal conductance: Fabry-Perrot resonances of plasmons -Polarization bubble for small q in arbitrary dimensionality -Polarization bubble in 1D --Small q --q near 2kF -Some details of bosonization procedure --Anomalous commutators --Bosonic operators --Problem
- with backscattering -References Impurity in the Tomonaga-Luttinger model: A functional integral approach -Introduction -Functional integral representation -The effective action for the Tomonaga-Luttinger Model -The bosonized action for free electrons -Gauging out the interaction -Tunnelling density of states near a single impurity -Jacobian of the gauge transformation -References Novel phenomena in double layer two-dimensional electron systems -Introduction -Overview of physics in the quantum hall regime --Basics --Quantized hall effects --Double layer systems -Coulomb drag between parallel 2D electron gases --Basic concept --Experimental --Elementary theory of Coulomb drag --Comparison between theory and experiment -Tunneling between parallel two-dimensional electron gases --Ideal 2D-2D tunneling --Lifetime broadening --2D-2D tunneling in a perpendicular magnetic field -Strongly-coupled bilayer 2D electron systems and excitonic superfluidity --Introduction --Quantum hall
- ferromagnetism --Tunneling and interlayer phase coherence at nuT = 1 --Excitonic superfluidity at nuT = 1 --Detecting excitonic superfluidity -Conclusions -References Many?body theory of non?equilibrium systems -Introduction --Motivation and outline --Closed time contour -Free boson systems --Partition function --Green functions --Keldysh rotation --Keldysh action and causality --Free bosonic fields -Collisions and kinetic equation --Interactions --Saddle point equations --Dyson equation --Self-energy --Kinetic term --Collision integral -Particle in contact with an environment --Quantum dissipative action --Saddle?point equation --Classical limit --Langevin equations --Martin?Siggia?Rose --Thermal activation --Fokker-Planck equation --From Matsubara to Keldysh --Dissipative chains and membranes -Fermions --Free fermion Keldysh action --Keldysh rotation --External fields and sources --Tunneling current --Interactions --Kinetic equation -Disordered fermionic systems --Disorder averaging
- --Non?linear sigma?model --Usadel equation --Fluctuations --Spectral statistics -Gaussian integration -Single particle quantum mechanics -References Non-linear quantum coherence effects in driven mesoscopic systems -Introduction -Weak Anderson localization in disordered systems --Drude approximation --Beyond Drude approximation --Weak localization correction -Non-linear response to a time-dependent perturbation --General structure of nonlinear response function --Approximation of single photon absorption/emission -Quantum rectification by a mesoscopic ring -Diff
The developments of nanofabrication have enabled the design of electronic systems that exhibit spectacular signatures of quantum coherence. Basic concepts and analytical tools needed to understand nanophysics are presented in a series of theoretical fundamental courses
Beschreibung:1 Online-Ressource (xxxii, 607 p.)
ISBN:0080461247
9780080461243

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